"However this ends, you're probably going to find out some things about me, and they're not nice things. But, Ash, even after you know, do you think you could remember the good? And whatever you end up discovering - try to think of me kindly. If you can."

Ember Crow is missing. To find her friend, Ashala Wolf must control her increasingly erratic and dangerous Sleepwalking ability and leave the Firstwood. But Ashala doesn't realise that Ember is harbouring terrible secrets and is trying to shield the Tribe and all Illegals from a devastating new threat - her own past.